4 * (C) Copyright 1989-1995
20 * The module asdata.c contains the global constants,
21 * structures, and variables used in the assembler.
24 int aserr; /* ASxxxx error counter
26 jmp_buf jump_env; /* compiler dependent structure
27 * used by setjmp() and longjmp()
29 int inpfil; /* count of assembler
30 * input files specified
32 int incfil; /* current file handle index
35 int cfile; /* current file handle index
36 * of input assembly files
38 int flevel; /* IF-ELSE-ENDIF flag will be non
39 * zero for false conditional case
41 int tlevel; /* current conditional level
43 int ifcnd[MAXIF+1]; /* array of IF statement condition
44 * values (0 = FALSE) indexed by tlevel
46 int iflvl[MAXIF+1]; /* array of IF-ELSE-ENDIF flevel
47 * values indexed by tlevel
50 char afn[FILSPC]; /* afile temporary file name
52 char srcfn[MAXFIL][FILSPC]; /* array of source file names
54 int srcline[MAXFIL]; /* source line number
56 char incfn[MAXINC][FILSPC]; /* array of include file names
58 int incline[MAXINC]; /* include line number
61 int radix; /* current number conversion radix:
62 * 2 (binary), 8 (octal), 10 (decimal),
65 int line; /* current assembler source
68 int page; /* current page number
70 int lop; /* current line number on page
72 int pass; /* assembler pass number
74 int lflag; /* -l, generate listing flag
76 int cflag; /* -c, generate sdcdb debug info
78 int gflag; /* -g, make undefined symbols global flag
80 int aflag; /* -a, make all symbols global flag
82 int jflag; /* -j, generate debug information flag
84 int oflag; /* -o, generate relocatable output flag
86 int sflag; /* -s, generate symbol table flag
88 int pflag; /* -p, enable listing pagination
90 int xflag; /* -x, listing radix flag
92 int fflag; /* -f(f), relocations flagged flag
94 Addr_T laddr; /* address of current assembler line
95 * or value of .if argument
97 Addr_T fuzz; /* tracks pass to pass changes in the
98 * address of symbols caused by
99 * variable length instruction formats
101 int lmode; /* listing mode
103 char *ep; /* pointer into error list
106 char eb[NERR]; /* array of generated error codes
108 const char *ip; /* pointer into the assembler-source
111 const char *ib; /* assembler-source text line
113 char *cp; /* pointer to assembler output
116 char cb[NCODE]; /* array of assembler output values
118 int *cpt; /* pointer to assembler relocation type
121 int cbt[NCODE]; /* array of assembler relocation types
122 * describing the data in cb[]
124 char tb[NTITL]; /* Title string buffer
126 char stb[NSBTL]; /* Subtitle string buffer
128 char optsdcc[NINPUT]; /* sdcc compile options
131 char symtbl[] = { "Symbol Table" };
132 char aretbl[] = { "Area Table" };
134 char module[NCPS]; /* module name string
138 * The mne structure is a linked list of the assembler
139 * mnemonics and directives. The list of mnemonics and
140 * directives contained in the device dependent file
141 * xxxpst.c are hashed and linked into NHASH lists in
142 * module assym.c by syminit(). The structure contains
143 * the mnemonic/directive name, a subtype which directs
144 * the evaluation of this mnemonic/directive, a flag which
145 * is used to detect the end of the mnemonic/directive
146 * list in xxxpst.c, and a value which is normally
147 * associated with the assembler mnemonic base instruction
152 * struct mne *m_mp; Hash link
153 * char *m_id; Mnemonic
154 * char m_type; Mnemonic subtype
155 * char m_flag; Mnemonic flags
156 * Addr_T m_valu; Value
159 struct mne *mnehash[NHASH];
162 * The sym structure is a linked list of symbols defined
163 * in the assembler source files. The first symbol is "."
164 * defined here. The entry 'struct tsym *s_tsym'
165 * links any temporary symbols following this symbol and
166 * preceeding the next normal symbol. The structure also
167 * contains the symbol's name, type (USER or NEW), flag
168 * (global, assigned, and multiply defined), a pointer
169 * to the area structure defining where the symbol is
170 * located, a reference number assigned by outgsd() in
171 * asout.c, and the symbols address relative to the base
172 * address of the area where the symbol is located.
176 * struct sym *s_sp; Hash link
177 * struct tsym *s_tsym; Temporary symbol link
179 * char s_type; Symbol subtype
180 * char s_flag; Symbol flags
181 * struct area *s_area; Area line, 0 if absolute
182 * int s_ref; Ref. number
183 * Addr_T s_addr; Address
187 { NULL, NULL, ".", S_USER, S_END, NULL, 0, }
190 struct sym *symp; /* pointer to a symbol structure
192 struct sym *symhash[NHASH]; /* array of pointers to NHASH
193 * linked symbol lists
197 * The area structure contains the parameter values for a
198 * specific program or data section. The area structure
199 * is a linked list of areas. The initial default area
200 * is "_CODE" defined here, the next area structure
201 * will be linked to this structure through the structure
202 * element 'struct area *a_ep'. The structure contains the
203 * area name, area reference number ("_CODE" is 0) determined
204 * by the order of .area directives, area size determined
205 * from the total code and/or data in an area, area fuzz is
206 * an variable used to track pass to pass changes in the
207 * area size caused by variable length instruction formats,
208 * and area flags which specify the area's relocation type.
212 * struct area *a_ap; Area link
213 * char *a_id; Area Name
214 * int a_ref; Reference number
215 * Addr_T a_size; Area size
216 * Addr_T a_fuzz; Area fuzz
217 * int a_flag; Area flags
220 struct area area[] = {
221 { NULL, "_CODE", 0, 0, 0, A_CON|A_REL }
224 struct area *areap; /* pointer to an area structure
227 FILE *lfp; /* list output file handle
229 FILE *ofp; /* relocation output file handle
231 FILE *tfp; /* symbol table output file handle
233 FILE *sfp[MAXFIL]; /* array of assembler-source file handles
235 FILE *ifp[MAXINC]; /* array of include-file file handles
239 * array of character types, one per
242 unsigned char ctype[128] = {
243 /*NUL*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
244 /*BS*/ ILL, SPACE, ILL, ILL, SPACE, ILL, ILL, ILL,
245 /*DLE*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
246 /*CAN*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
247 /*SPC*/ SPACE, ETC, ETC, ETC, LETTER, BINOP, BINOP, ETC,
248 /*(*/ ETC, ETC, BINOP, BINOP, ETC, BINOP, LETTER, BINOP,
249 /*0*/ DGT2, DGT2, DGT8, DGT8, DGT8, DGT8, DGT8, DGT8,
250 /*8*/ DGT10, DGT10, ETC, ETC, BINOP, ETC, BINOP, ETC,
251 /*@*/ ETC, LTR16, LTR16, LTR16, LTR16, LTR16, LTR16, LETTER,
252 /*H*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
253 /*P*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
254 /*X*/ LETTER, LETTER, LETTER, ETC, ETC, ETC, BINOP, LETTER,
255 /*`*/ ETC, LTR16, LTR16, LTR16, LTR16, LTR16, LTR16, LETTER,
256 /*h*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
257 /*p*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
258 /*x*/ LETTER, LETTER, LETTER, ETC, BINOP, ETC, ETC, ETC
262 * an array of characters which
263 * perform the case translation function
266 /*NUL*/ '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
267 /*BS*/ '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
268 /*DLE*/ '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
269 /*CAN*/ '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
270 /*SPC*/ '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
271 /*(*/ '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
272 /*0*/ '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
273 /*8*/ '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
274 /*@*/ '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
275 /*H*/ '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
276 /*P*/ '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
277 /*X*/ '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
278 /*`*/ '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
279 /*h*/ '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
280 /*p*/ '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
281 /*x*/ '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177'